1. Computer time costs $4.50 for 30 min. What is the unit rate? Ratios and Rates COURSE 3 LESSON 5-1 cost number of minutes $4.50 30 min = Write a rate comparing cost to minutes. = $.15/min Divide. The unit rate is $.15 per minute. 5-1

2. Keneesha drove her car 267 mi using 11 gal of gas. Vanessa drove her car 210 mi using 9 gal. Give the unit rate for each. Which car got more miles per gallon of gas? Ratios and Rates COURSE 3 LESSON 5-1 Keneesha’s car got more miles per gallon. miles gallons 267 mi 11 gal = Write the rates comparing miles to gallons. miles gallons 210 mi 9 gal = Keneesha Vanessa Divide. 24.27272727 mi/gal 23.33333333 mi/gal 24.3 mi/gal 23.3 mi/gal Round to the nearest tenth. 5-1

3. (continued) Ratios and Rates COURSE 3 LESSON 5-1 Check for Reasonableness 24.3 11 = 267.3 and 267.3 267. Also, 23.3 9 = 209.7 and 209.7 210. The answers are reasonable. 5-1

4. Ratios and Rates Express each ratio in simplest form. 1.27 laps : 81 minutes 2.12 minutes : 3 hours 3.Carli walked 16 miles in 5 hours. Find the unit rate. 4.A 21-oz bottle of shampoo costs $2.80. A 12-oz bottle costs $1.35. Which has the better unit rate? COURSE 3 LESSON 5-1 1313 1 15 3.2 mi/h 12-oz bottle 5-1